09 Oct The Relationship Between Sales and Advertising Nursing PaperThe Relationship Between Sales and Advertising Nursing Paper

The Relationship Between Sales and Advertising Nursing Paper

• Question 1Assume you have noted the following prices for paperback books and the number of pages that each book contains.
  Develop a least-squares estimated regression line.
  1. Compute the coefficient of determination and explain its meaning.
  2. Compute the correlation coefficient between the price and the number of pages. Test to see if x and y are related. Use α = 0.10. T

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Question 2

The following data represent a company’s yearly sales volume and its advertising expenditure over a period of 8 years.

• 1. Develop a scatter diagram of sales versus advertising and explain what it shows regarding the relationship between sales and advertising.
  2. Use the method of least squares to compute an estimated regression line between sales and advertising.
  3. If the company’s advertising expenditure is $400,000, what are the predicted sales? Give the answer in dollars.
  4. What does the slope of the estimated regression line indicate?

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You must proofread your paper. But do not strictly rely on your computer’s spell-checker and grammar-checker; failure to do so indicates a lack of effort on your part and you can expect your grade to suffer accordingly. Papers with numerous misspelled words and grammatical mistakes will be penalized. Read over your paper – in silence and then aloud – before handing it in and make corrections as necessary. Often it is advantageous to have a friend proofread your paper for obvious errors. Handwritten corrections are preferable to uncorrected mistakes.

Use a standard 10 to 12 point (10 to 12 characters per inch) typeface. Smaller or compressed type and papers with small margins or single-spacing are hard to read. It is better to let your essay run over the recommended number of pages than to try to compress it into fewer pages.

Likewise, large type, large margins, large indentations, triple-spacing, increased leading (space between lines), increased kerning (space between letters), and any other such attempts at “padding” to increase the length of a paper are unacceptable, wasteful of trees, and will not fool your professor.

The paper must be neatly formatted, double-spaced with a one-inch margin on the top, bottom, and sides of each page. When submitting hard copy, be sure to use white paper and print out using dark ink. If it is hard to read your essay, it will also be hard to follow your argument.